55191780

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:216

約数の個数: 240

約数和(自身を含む): 205556736

約数和(自身を除く): 150364956

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 31, 35, 36, 42, 45, 54, 60, 62, 63, 70, 81, 84, 90, 93, 105, 108, 124, 126, 135, 140, 155, 157, 162, 180, 186, 189, 210, 217, 252, 270, 279, 310, 314, 315, 324, 372, 378, 405, 420, 434, 465, 471, 540, 558, 567, 620, 628, 630, 651, 756, 785, 810, 837, 868, 930, 942, 945, 1085, 1099, 1116, 1134, 1260, 1302, 1395, 1413, 1570, 1620, 1674, 1860, 1884, 1890, 1953, 2170, 2198, 2268, 2355, 2511, 2604, 2790, 2826, 2835, 3140, 3255, 3297, 3348, 3780, 3906, 4185, 4239, 4340, 4396, 4710, 4867, 5022, 5495, 5580, 5652, 5670, 5859, 6510, 6594, 7065, 7812, 8370, 8478, 9420, 9734, 9765, 9891, 10044, 10990, 11340, 11718, 12555, 12717, 13020, 13188, 14130, 14601, 16485, 16740, 16956, 17577, 19468, 19530, 19782, 21195, 21980, 23436, 24335, 25110, 25434, 28260, 29202, 29295, 29673, 32970, 34069, 35154, 39060, 39564, 42390, 43803, 48670, 49455, 50220, 50868, 58404, 58590, 59346, 63585, 65940, 68138, 70308, 73005, 84780, 87606, 87885, 89019, 97340, 98910, 102207, 117180, 118692, 127170, 131409, 136276, 146010, 148365, 170345, 175212, 175770, 178038, 197820, 204414, 219015, 254340, 262818, 292020, 296730, 306621, 340690, 351540, 356076, 394227, 408828, 438030, 445095, 511035, 525636, 593460, 613242, 657045, 681380, 788454, 876060, 890190, 919863, 1022070, 1226484, 1314090, 1533105, 1576908, 1780380, 1839726, 1971135, 2044140, 2628180, 2759589, 3066210, 3679452, 3942270, 4599315, 5519178, 6132420, 7884540, 9198630, 11038356, 13797945, 18397260, 27595890, 55191780]

約数ペア:

[(1, 55191780), (2, 27595890), (3, 18397260), (4, 13797945), (5, 11038356), (6, 9198630), (7, 7884540), (9, 6132420), (10, 5519178), (12, 4599315), (14, 3942270), (15, 3679452), (18, 3066210), (20, 2759589), (21, 2628180), (27, 2044140), (28, 1971135), (30, 1839726), (31, 1780380), (35, 1576908), (36, 1533105), (42, 1314090), (45, 1226484), (54, 1022070), (60, 919863), (62, 890190), (63, 876060), (70, 788454), (81, 681380), (84, 657045), (90, 613242), (93, 593460), (105, 525636), (108, 511035), (124, 445095), (126, 438030), (135, 408828), (140, 394227), (155, 356076), (157, 351540), (162, 340690), (180, 306621), (186, 296730), (189, 292020), (210, 262818), (217, 254340), (252, 219015), (270, 204414), (279, 197820), (310, 178038), (314, 175770), (315, 175212), (324, 170345), (372, 148365), (378, 146010), (405, 136276), (420, 131409), (434, 127170), (465, 118692), (471, 117180), (540, 102207), (558, 98910), (567, 97340), (620, 89019), (628, 87885), (630, 87606), (651, 84780), (756, 73005), (785, 70308), (810, 68138), (837, 65940), (868, 63585), (930, 59346), (942, 58590), (945, 58404), (1085, 50868), (1099, 50220), (1116, 49455), (1134, 48670), (1260, 43803), (1302, 42390), (1395, 39564), (1413, 39060), (1570, 35154), (1620, 34069), (1674, 32970), (1860, 29673), (1884, 29295), (1890, 29202), (1953, 28260), (2170, 25434), (2198, 25110), (2268, 24335), (2355, 23436), (2511, 21980), (2604, 21195), (2790, 19782), (2826, 19530), (2835, 19468), (3140, 17577), (3255, 16956), (3297, 16740), (3348, 16485), (3780, 14601), (3906, 14130), (4185, 13188), (4239, 13020), (4340, 12717), (4396, 12555), (4710, 11718), (4867, 11340), (5022, 10990), (5495, 10044), (5580, 9891), (5652, 9765), (5670, 9734), (5859, 9420), (6510, 8478), (6594, 8370), (7065, 7812)]